Organs and Organ Systems

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Transcript of Organs and Organ Systems

Tissues, Organs and SystemsTo examine pig organs and record detailed observations in a table

Be able to identify and explain the function of the main organs

Cells TissuesOrgans SystemsBricks WallsRoomsHouse CIRCULATORY SYSTEMThis system is made up of the heart, blood, blood vessels, and lymphatics. It is the body’s delivery system, concerned with circulating blood to deliver oxygen and nutrients to every part of the body.

DIGESTIVE SYSTEMThe purpose of the digestive system is to turn the food .you eat into something useful for the body. When you eat, your body uses this system to digest food so your cells can use it to make energy. The organs involved in this system include the mouth, stomach, and intestinesENDOCRINE SYSTEMThis system is made up of a collection of glands, including the pituitary and thyroid glands, as well as the ovaries and testes. It regulates, coordinates, and controls a number of body functions by secreting chemicals into the bloodstream. These secretions help control moods, growth and development, and metabolism.

INTEGUMENTARY SYSTEMThis system consists of the skin, hair, nails, and sweat glands. Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.

MUSCULAR SYSTEMThis system is made up of muscle tissue that helps move the body and move materials through the body. Quite simply, muscles move you. Muscles are bundles of cells and fibers that w, ork in a simple way: they tighten up and relax.

NERVOUS SYSTEMThe nervous system is the control center of the human body. It is made up of the brain, spinal cordand nerves. It receives and interprets stimuli and transmits impulses to organs. Your brain uses the information it receives to coordinate all of your actions and reactions.

REPRODUCTIVE SYSTEMThe human reproductive system ensures that humans are able to reproduce and survive as a species. It is made up of organs such as the uterus, penis, ovaries, and testes.

RESPIRATORY SYSTEMThe primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. It consists of the nose, larynx, trachea, diaphragm, bronchi, and lungs.

SKELETAL SYSTEMThe skeletal system provides the shape and form for our bodies in addition to supporting and protecting our bodies, allowing bodily movement, producing blood cells, and storing minerals. This system consists of bones, cartilage, and joints.

URINARY SYSTEMThe purpose of the urinary system is to filter out excess fluid and other substances from your bloodstream. Some fluid gets reabsorbed by your body but most gets expelled as urine. The organs found in this system are the kidneys, uCirculatory systemDigestive SystemEndocrine systemIntegumentary systemMuscular systemNervous systemReproductive systemRespiratory systemSkeletal systemUrinary system

What is amazing is that all these systems work together at the same time but doing different jobswhich of these organs do you think is part of the digestive system?Growing TissueWhat might be the benefit?What might be some problems?Circulatory System: This system is made up of the heart, blood, blood vessels, and lymphatics. It is the body’s delivery system, concerned with circulating blood to deliver oxygen and nutrients to every part of the body.Reproductive System: The human reproductive system ensures that humans are able to reproduce and survive as a species. It is made up of organs such as the uterus, penis, ovaries, and testes.

Respiratory: The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. Digestive System: The purpose of the digestive system is to turn the food you eat into something useful for the body. When you eat, your body uses this system to digest food so your cells can use it to make energy. In order to do this you must break down food into smaller molecules that your cells can use. Some of the organs involved in this system include the mouth, liver, stomach, and intestines.

Urinary System: The purpose of the urinary system is to filter out excess fluid and other substances from your bloodstream. Some fluid gets reabsorbed by your body but most gets expelled as urine. The organs found in this system are the kidneys, ureter, bladder and urethra.PIG PLUCK Digestive Systemmouthoesophagus/gulletliverstomachAnuslarge intestinegall bladder-Tube to the stomach - Food moves through with peristalsis (wave-like muscle contractions) small intestinebile to break down fatshydrochloric acid villiLO: to learn about how nutrients are broken down and taken into our bodies through the digestive systemVisual journey through the digestive systemLO: to use materials in the lab to simulate the process of digestion Which one of the 7 processes of life relates to digestion?Amylase: Breaks down starch in foodpancreasAppendixRelease enzymes- amylase (starch/carbohydrates)- lipase (lipids/fats)- protease (proteins)

enzymes are released into the small intestineLargest internal organ- releases bile which helps to break down large fat droplets stores bile made by the liver for future use There are 2 types of digestion

Chemical Digestion: Breakdown of food by enzymes in the digestive system

Physical Digestion: mechanical breakdown of food-chewing-squishing

-Gastric juices are secreted (hydrochloric acid).-Has layers of muscle that line the inside.-Mechanically and chemically breaks down food.

Mechanical Digestion: Food is chewed by various specialized teeth in order to break it down into smaller pieces

Chemical Digestion: In the mouth food mixes with saliva. Saliva moistens the food and contains an enzyme (amylase) that begins the breakdown starches-where nutrients are absorbed into the bloodstream- over 6meters (15 feet) long! - small intestine has huge surface area = 300m2 (~size of tennis court)

finger-like projectionsincrease surface area for absorptionnutrients move into the villi by diffusion

Solid materials pass through the large intestine.These are indigestible solids (fibers cellulose).Remaining water is absorbed here

solid waste is held here until expelled through the process of egestion

Faeces: the scientific term for poopcontains all waste material that body was unable to digest The Digestive System LO: To describe the role of the digestive system

-to identify main parts of the digestive system (1-3)-to describe what happens to food as it moves through the digestive system (3-6)- To explain how adaptations of the small intestine increases the rate of absorption (7-9)